Description
Dorsey Metrology International
16VS Vertical Beam Optical Comparator
This dynamic vertical optical system is the first of its kind manufactured in the USA.
This system allows a much greater stage capacity up to 50 pounds (15 lbs in the center of the glass plate) with optional stage travel up to 16″ x 8″.
FEATURES:
16″ (400mm) Diameter vertical screen for optimum viewing
Reversed and inverted image
High resolution ground glass screen with calibration reticle, 90 degree cross lines, and chart clips
Machined chart ring with vernier protractor
High specification stage
50 lbs stage capacity (15 lbs on glass)
15″ x 10.5″ (350x267mm) overall size of stage
11″ x 7″ (280x178mm) glass insert
8″ x 4″ (200x100mm) travel
4″ (100mm) focal distance in the Z-axis
Multiple stage options with up to 16″ x 8″ of travel
Quartz halogen light source. Fan cooled and electronically dimmed for long lamp life
Dynamic optical head to maintain constant mass accuracy
Built in rotary 3 lens turret & 2 position condenser turret
Non coaxial surface illumination is standard
Welded plate steel case fabrication
Coated telecentric parfocal optics
Lens choices of 10X through 100X
Linear Scale Resolution .0001mm/.000004″ X & Y-axis
Choice of readout or full CNC computerized systems available
NIST traceable calibration certificate
2 Year limited warranty
Technical Specification
Illumination
Profile: Built-in 24V/150W direct collimated halogen
Surface: 150W direct halogen
Screen Size 16” (400mm) Ground glass with cross-lines
Stage Cast iron, nickel plated, 15” x 10.5” overall size
Stage Travel
X = 8” (200mm)
Y = 4” (100mm)
Focus = 4” (100mm)
Stage Accuracy Within +/- 0.004mm +[(L/20).001]
Linear Scale Resolution Standard: .0001/.000004″ (X & Y axis)
Repeatability of Scales +/- 1 Scale count (.0001/.000004”)
Coated Telecentric Lenses 10x, 20x, 25x, 31.25x, 50x, 62.5x, 100x
Optical Accuracy Within +/- 0.1% Profile, +/- .15% Surface
Power Requirements 120V or 240V AC, 50/60 Hz, 10 Amp
Weight 375 lbs/170 kg
OPTIONAL FEATURES:
Motorized stage
Internal edge detection
Coaxial surface illumination
Output for electronic rotary screen protractor (Q-axis) with selectable 1 minute or 1/100 of a degree resolution
Choice of readout options
For choices of other vertical stages see page 16
Wide selection of lenses
Harsh Environment Package
Tooling
